diff --git a/tacker/tests/functional/vnfm/test_tosca_vnf_scale.py b/tacker/tests/functional/vnfm/test_tosca_vnf_scale.py
index ac468aedb..0b06a6b83 100644
--- a/tacker/tests/functional/vnfm/test_tosca_vnf_scale.py
+++ b/tacker/tests/functional/vnfm/test_tosca_vnf_scale.py
@@ -61,6 +61,15 @@ class VnfTestToscaScale(base.BaseTackerTest):
             self.assertEqual(count, len(json.loads(vnf['mgmt_url'])['VDU1']))
 
         _wait(2)
+        # Get nested resources when vnf is in active state
+        vnf_details = self.client.list_vnf_resources(vnf_id)['resources']
+        resources_list = list()
+        for vnf_detail in vnf_details:
+            resources_list.append(vnf_detail['name'])
+        self.assertIn('VDU1', resources_list)
+
+        self.assertIn('CP1', resources_list)
+        self.assertIn('G1', resources_list)
 
         def _scale(type, count):
             body = {"scale": {'type': type, 'policy': 'SP1'}}
@@ -93,4 +102,4 @@ class VnfTestToscaScale(base.BaseTackerTest):
         # Delete vnfd_instance
         self.addCleanup(self.client.delete_vnfd, vnfd_id)
         self.addCleanup(self.wait_until_vnf_delete, vnf_id,
-            constants.VNF_CIRROS_DELETE_TIMEOUT)
+                        constants.VNF_CIRROS_DELETE_TIMEOUT)
diff --git a/tacker/vnfm/infra_drivers/openstack/openstack.py b/tacker/vnfm/infra_drivers/openstack/openstack.py
index d13e6e60a..e479fb522 100644
--- a/tacker/vnfm/infra_drivers/openstack/openstack.py
+++ b/tacker/vnfm/infra_drivers/openstack/openstack.py
@@ -391,14 +391,17 @@ class OpenStack(abstract_driver.DeviceAbstractDriver,
     @log.log
     def get_resource_info(self, plugin, context, vnf_info, auth_attr,
                           region_name=None):
-        stack_id = vnf_info['instance_id']
+        instance_id = vnf_info['instance_id']
         heatclient = hc.HeatClient(auth_attr, region_name)
         try:
-            resources_ids = heatclient.resource_get_list(stack_id)
+            # nested_depth=2 is used to get VDU resources
+            # in case of nested template
+            resources_ids =\
+                heatclient.resource_get_list(instance_id, nested_depth=2)
             details_dict = {resource.resource_name:
-                           {"id": resource.physical_resource_id,
-                           "type": resource.resource_type}
-                           for resource in resources_ids}
+                            {"id": resource.physical_resource_id,
+                             "type": resource.resource_type}
+                            for resource in resources_ids}
             return details_dict
         # Raise exception when Heat API service is not available
         except Exception: